<?php
$token = "e923196639594aa9e1f463225bc8e5d4";
$domain = $_POST['domain'];
$url = sprintf("https://www.5la.cn/api/wxdomain.html?domain=%s&token=%s", $domain, $token);
$res=file_get_contents($url);
$res = json_decode($res, true);
if($res['code']==200){
    echo "域名正常";
}else{
    echo $res['msg'];
}